Explosion-motor.



H. A. BERTHEAU. EXPLOSION MOTOR. APPLICATION FILED MAR. 10, 1908;

Patented Dec. 1 1908.

fizz/e72 2'07,

U NITE s'nvrns Application filed. March 1906. Serial No. 305325.

Sweden. have inventedfcertain new and useful Improvements in Explosion-Motors; and I I do hereby declare the following to be a full, clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the.

same, reference being bad to the accompanying drawings, and'to letters or figures of reference marked thereon. which form a part of this specification. I l

a This invention relates to improvements in explosion motors} in which air andfuel are sucked in by one and the same valve.

mixture into the valve seat the fuel is passed over by the air, which entersat the same time with great rapidity taking the fuel along with it. A. direct consequence of'this arrangement is, thatair and fuel are. during the suction, so thoroughly mixed with each other, that the mixture is ready for ignition at the completion of the compression stroke without any further mixing.

As is well known, it often occurs that the ignition takes place too early. that is. before the motor-piston. has reached the (leadpoint position. This is usually caused by the i gnition-body becoming too highly heated after the motor has been running some time. To prevent this excessiveheatiug of the ignition-body. in order to avoid too early ignition, oti'ers manypractical ditticulties.

The object. of this invention is toso proportion thecomposition of the air and gas that it is not made ignit-able before the moment of the highest compression. It is therefore so arr: nged that the components of the mixture, air and gether, or only in a wry small degree when simultaneously sucked in': The fuel evaporatesjand is afterwards, by degrees, mixed with air only during the compression stroke,

and only at the highest point of compression has there been a sutiicient mixing to form a 1 is a vertical section 0 along lines A'-B-CD in Fig. 1,

perfect mixture ready for ignition.

In the accompanyin '-drawing-l igure- 1 a motor embodying Fig. 2 is a horizontal section and Fig. 3 is a. cross-section on line E-F, Fig. v1. a designates the valve which controls a my invention.

Specification of Letters Patent.

the King of Sweden, re-

and fuel have thus entered Heretofore where the fuel-passage opens ,7) is placed on the same against the edge Z.

t I gas being fuel, do not mix to PATEXT 1 OFFICE.

EXPLOSION-MOTOR.

Patented Dec. 1, 190a.

! port for admitting air and fuel, which latter enters tl'irough'a conduit b opening into the valve seat. while atmospheric air is sucked in through orifices 0 formed in a-cover of the 1 port. v p d designates containing the piston An evaporation i chamber. as j, which 1 her, contains an ignition chamber g which 1 communicates with the chamber through an 5 orifice 71., The escapement of the combustion "gases from the cylinder is regulated by the valve i. V Heretoforein the arrangement of motors. the admission valve has been placed at the outer end of the evaporation chamber. Air and mixed together in said chamber and escaped from there directly to 'the motor the evaporation of the fuel. According to 'g the present invention valve a is now pla'ced between the evaporation chamber and the 1 cylinder, and'between the cylinder and the i evaporation chamber is placed a partition k, as shownon the drawing.

side of the valve opening as partition is, and said partition 1 is provided with an upward bent edge I. l which fits closely against the outer edge of the valve. The latter is preferably provided with an extension, m reaching downward It is evident that if the valve port be opened, the fuel entering through conduit 1) will strike against the 1 beveled face a of the valve a andis deflectf ed into the chamber f. Evaporation takes place in the'chalnber f and it becomes filled with thick gas, of which only .an unimportant part, will enter into the cylinder (1 said held in check by the partition 7:. then the piston'returns for the compression, the atmospheric air previously. sucked into the cylinder is driven past the underside ofthe partition I." through passages in, see Fig. 2, and into the upper part of the evaporation chamber f, where it mixes with the thick gas. The gas is thus mixed with the air in the same degree as the compression proceeds,

and the mixture cannot on. this account, prol i "id edihe motor is properly constructed,be

perfected before the completion of the compression, or what is the same, the gas mixture is not ready for ignition before the completion of the eompressiofi stroke, and the l ignition cannot take place too soon.. Apartportion of a motor cylinderis also themixing chamcylinder after The fuel conduit of the air-gas mixture generated in the evap oration chamber f is driven through orifice it into the ignition chamber 9, in which latter, naturally, the pressure and mixing 'cond1- tions will be the same as in the evaporation chamber and the cylinder.

Theignition body may consist of a small cylinder n' of some fire-proof heat-absorbin material, preferably of soap-stone. The cylinder n, which is provided on the outside with brackets or studs 0, is mounted in a larger cylinder 39, also preferably of soapstone, and this latter cylinder being provided with edge flanges q on'the outside, is put into the cylindrical ignition chamber 9. As is evident from the above description, there is a space between the curved surfaces of the cylinders as well as between the ends of the same, and the driving-gas mixture, entering first through orifice it and afterwards through orifice 1', may be spread around both of the soap-stone cylinders before the mixture is ignited. After having run awhile the cylinders are heated to a very high degree, especiall 1 the innermost one, which, being first surrounded by the cylinder 79 and further by the ignition chamber g, is as fully as possible protected against cooling-off and remains incandescent, thus constantly insuring a quick and'sure ignition.

1. In an explosion motor the combination with a cylinder, a reciprocating piston therein. and an evaporator chamber communicating with the cylinder, of means between the cylinder and chamber to simultaneously supply fuel to the chamber and air to the cylinder. means to subsequently direct the air from the cylinder to the chamber. and means to retard the flow of fuel from the chamber whereby the nixing of the air and fuel takes place in the chamber and is compressed therein to ignition pressure.

2. In an explosion motor, thecombination with a cylinder, a reciprocating piston therein, and an evaporation chamber cominunieating with the cylinder, of means between the cylinder and chamber to simultaneously supply fuel to the chamber and air to the cylinder, and a partition in the chamber adapted to retard the passage of fuel therefrom during the suction stroke of the piston and to ch a inber piston.

3. In an explosion motor, the combination with a cylinder, a reciprocating piston therein, and an evaporation chamber communion the compression stroke of the l l i i permit the entrance of air into the eating with the cylinder, of means between the cylinder and chamber to simultaneously supply fuel to the chamber and air to the cylinder on the suction a partition in the chamber adapted to retard the passage of fuel therefrom during said suction and provided with apertures to permit the entrance of air to the chamber during the compression stroke of the piston, and an ignition device mounted'in the chamber. 4. In an explosion engine, the combination with a cylinder and a reciprocating piston therein, of an evaporation municating with the cylinder, a single valve controlling-both the air and fuel ports situ- ;ated between the cylinder and chamber, means on the valve to direct the entering fuel into the chamber and the air into the cylinder, and means to subsequently direct;

air from the cylinder to the chamber. i

of a cylinder having a port therein, a cover for said port forming a valve seat having fuel and air passages therein, an evaporation chamber having passages communicating with the port and cylinder, and a valve on the seat controlling both the fuel and air passages and adapted .to direct the fuel into one of said passages and the air to the cylinder.

6. An explosion engine comprising a cylinder having a port therein, an evaporation chamber, a partition therein forming a. fuel passage communicating with the port and a passage communicating with the cylinder, :1. cover for said port forming a val vc-sea t huving a fuel passage terminating in the seat and air passages in its top, a valve on the seat adapted to simultaneously open or close both fuel passages.

7. In an explosion iiiotor. the confli-ination with a cylinder, a reciprocating p ston therein and an mfaporation chamber communieating with the cylinder. of means to simultaneously supply fuel to the clian'iber and air to the cylinder, an ignition cylinder mounted in the evaporation cylinder and cmnmunieating therewith through an aperture in the top of the ignition cylinder. and a partition in the evz-iporation cylinder forming-fuel and air passages.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

llEi lllli AUGUST lilllt'llilllltt.

itnesses CARL Fninnno, HJ. ZETTERSTROM.

stroke of the piston,-

o. In an explosion engine, the combination 

